This is a 50 foot primary power cable for Planar/Clarity 48V Matrix displays, 55 & 46" G2  series not G1 or G3 (we have separate listings for those as well.) 
This cable has a 3 conductor connector on one end to connect to the power supply, and a 2 conductor connector on the other end to connect to the first LCD in the chain. Each primary cable from the power supply can drive up to 4 LCD displays. You will need to purchase an 8' loop thru cable for each additional monitor.in the chain. (we have a listing for those as well)
    You will need to add a 50 foot cat 5/6 shielded signal cable to go with each powered display. Returns accepted for cable still in sealed bag, otherwise restocking fee applies. 
Feel Free to write if you have questions on this.